Hot-metal container



Patented Feb. 1, 192 7.

UNITED STATES I 1,616,074 PATENT OFFICEQQ cam. r. ASTROM, or nas'r ORANGE, new JERSEY. assrenon Eve at. n. TREADWELL COMPANY, OF NEW YORK, N. Y.,

A CORPORATION OF NEW YORKL HOT-METAL eon'ramna.

Application filed October. 31, 1925. Serial N02 65,921.

This invention relates to'hot metal containers or ladies and has for its object to provide such a container which has reduced heat radiation losses, lessened operating costs, reduction in weight of material required for the container, and which requires less power to tilt.

Containers for hot metal heretofore used have been of various shapes, some cylindrical about either axis, some rounded at the ends or at the bottom. These containers are generally lined with a heat resistant brick of some sort, buteven the best of linings cannot withstand the effect of the hot metal and need replacing. Where the container is of nonuniform curvature in some parts the lining replacement cost is high due to the expense of using specially shaped bricks, or else the labor cost is high due to the-necessity of carefully fitting all bricks. Even though the contour of .a container be uniform curvature in most' of its length, as-

. for example, with a cylindrical container,

- nevertheless the ends of such cylindrical .container require bricks to be fit in place difterently. According to this invention a spherical container is mounted on trunnions and lined with bricks which are all alike and shaped to The container and plurality of bricks all of the same shape have their sides 14 uniformly tapered radially, the inner surfaces,

15 of these bricks are curved in both direc a cementitious lining 2Q also of clay and ganister. The-lin1ng 20 engages the side faces of the adjacent bricks and prevents movement of the bricks towards theaxis of the spout, thus serving to retain all of the efficient shape and provides a minimum -radiation surface by comparison with the capacity of the container. The spherical ladle illustrated also enables a minimum weight of material to be used in the construction of the ladle for a given size. The wear on hot metal containers is very substantial. and all such containers require relining from lame to time. With the lining composed of bricks all of the same shape, arranged to wedge and fit together the labor involved in replac ing of linings is substantially reduced. Another advantage of the. ladle of the type illustrated is the lessened efio'rt required to tilt since it is substantially balanced in all positions and there is no lifting or raising of the center of gravity, in pouring. as is necessarvwhen the container is not shaped like a solid of revolution about the trunnion axis. 'A sphere is the most efficient shape of solid to reduce heat radiation to a minimum since the surface is a minimum for the interclaims is not necessarily limited to a precise or geometric sphere, but rather indicates shapes which are substantially spherical and capable of being used to produce the new results of this invention. I claim- 1. The combination with a hot metal container of spherical shape. of a plurality tions about'th'e center of the ladle. and the.

of similar bricks lining substantially the entire interior of the same and shaped for wedging cooperation with adjacent bricks.

2. The combination witha hot metal container' of spherical shape, of a" pluralityflof similar bricks lining substantially the entire interior of the same, each of said bricks having uniformly tapered and radial sides,'the inner and outer surfaces of each of said bricks being spherical and concentric.

3.. A spherical container having a plurality of similar bricks lining substantially the entire interior of the same, the side faces of said bricks being uniformly radial and tapered, a pouring spout and a lining for said spout, said lining engaging the adjacent bricks. to retain all of them in position.

4. A sphericalcontainer having a metal shell, a plurality of similar bricks lining the same, the faces of said bricks being uniformly tapered and radially disposed, a backing of clay and ganister between said shell and bricks, a pouring spout, trunnions extending from substantially the center of said container shell, the lining of said spout retaining adjacent bricks in osition, and the container being spherical a ove as well as below said trunnions.

Signed at New York, in the county of New York and State of New York, this 29th day of October, A. D. 1925.

CARL P. ASTROM. 

